add version

[925818189]

**Describe something that is unclear or not documented and needs a documentation update
in Logs with loki catalog， helm install loki stack， and provide a config.yaml。but not specified a version, so i follow tutorial document get a lots of bug, the loki-grafana secrets is not have grafana config key, since the loki-grafana-437cxx pod is notReady status.
the config.yaml is not fine for latest version，it cant get response for scarpes pod, the pod is error with **Readiness probe failed: HTTP probe failed with statuscode: 500**. in actually, im so unaided.